'use client';
"use strict";
Object.defineProperty(exports, "__esModule", {
    value: true
});
0 && (module.exports = {
    createFetch: null,
    createFromNextReadableStream: null,
    fetchServerResponse: null,
    urlToUrlWithoutFlightMarker: null
});
function _export(target, all) {
    for(var name in all)Object.defineProperty(target, name, {
        enumerable: true,
        get: all[name]
    });
}
_export(exports, {
    createFetch: function() {
        return createFetch;
    },
    createFromNextReadableStream: function() {
        return createFromNextReadableStream;
    },
    fetchServerResponse: function() {
        return fetchServerResponse;
    },
    urlToUrlWithoutFlightMarker: function() {
        return urlToUrlWithoutFlightMarker;
    }
});
const _approuterheaders = require("../app-router-headers");
const _appcallserver = require("../../app-call-server");
const _appfindsourcemapurl = require("../../app-find-source-map-url");
const _routerreducertypes = require("./router-reducer-types");
const _flightdatahelpers = require("../../flight-data-helpers");
const _appbuildid = require("../../app-build-id");
const _setcachebustingsearchparam = require("./set-cache-busting-search-param");
// @ts-ignore
// eslint-disable-next-line import/no-extraneous-dependencies
// import { createFromReadableStream } from 'react-server-dom-webpack/client'
const { createFromReadableStream } = !!process.env.NEXT_RUNTIME ? require('react-server-dom-webpack/client.edge') : require('react-server-dom-webpack/client');
function urlToUrlWithoutFlightMarker(url) {
    const urlWithoutFlightParameters = new URL(url, location.origin);
    urlWithoutFlightParameters.searchParams.delete(_approuterheaders.NEXT_RSC_UNION_QUERY);
    if (process.env.NODE_ENV === 'production') {
        if (process.env.__NEXT_CONFIG_OUTPUT === 'export' && urlWithoutFlightParameters.pathname.endsWith('.txt')) {
            const { pathname } = urlWithoutFlightParameters;
            const length = pathname.endsWith('/index.txt') ? 10 : 4;
            // Slice off `/index.txt` or `.txt` from the end of the pathname
            urlWithoutFlightParameters.pathname = pathname.slice(0, -length);
        }
    }
    return urlWithoutFlightParameters;
}
function doMpaNavigation(url) {
    return {
        flightData: urlToUrlWithoutFlightMarker(url).toString(),
        canonicalUrl: undefined,
        couldBeIntercepted: false,
        prerendered: false,
        postponed: false,
        staleTime: -1
    };
}
let abortController = new AbortController();
if (typeof window !== 'undefined') {
    // Abort any in-flight requests when the page is unloaded, e.g. due to
    // reloading the page or performing hard navigations. This allows us to ignore
    // what would otherwise be a thrown TypeError when the browser cancels the
    // requests.
    window.addEventListener('pagehide', ()=>{
        abortController.abort();
    });
    // Use a fresh AbortController instance on pageshow, e.g. when navigating back
    // and the JavaScript execution context is restored by the browser.
    window.addEventListener('pageshow', ()=>{
        abortController = new AbortController();
    });
}
async function fetchServerResponse(url, options) {
    const { flightRouterState, nextUrl, prefetchKind } = options;
    const headers = {
        // Enable flight response
        [_approuterheaders.RSC_HEADER]: '1',
        // Provide the current router state
        [_approuterheaders.NEXT_ROUTER_STATE_TREE_HEADER]: (0, _flightdatahelpers.prepareFlightRouterStateForRequest)(flightRouterState, options.isHmrRefresh)
    };
    /**
   * Three cases:
   * - `prefetchKind` is `undefined`, it means it's a normal navigation, so we want to prefetch the page data fully
   * - `prefetchKind` is `full` - we want to prefetch the whole page so same as above
   * - `prefetchKind` is `auto` - if the page is dynamic, prefetch the page data partially, if static prefetch the page data fully
   */ if (prefetchKind === _routerreducertypes.PrefetchKind.AUTO) {
        headers[_approuterheaders.NEXT_ROUTER_PREFETCH_HEADER] = '1';
    }
    if (process.env.NODE_ENV === 'development' && options.isHmrRefresh) {
        headers[_approuterheaders.NEXT_HMR_REFRESH_HEADER] = '1';
    }
    if (nextUrl) {
        headers[_approuterheaders.NEXT_URL] = nextUrl;
    }
    try {
        var _res_headers_get;
        // When creating a "temporary" prefetch (the "on-demand" prefetch that gets created on navigation, if one doesn't exist)
        // we send the request with a "high" priority as it's in response to a user interaction that could be blocking a transition.
        // Otherwise, all other prefetches are sent with a "low" priority.
        // We use "auto" for in all other cases to match the existing default, as this function is shared outside of prefetching.
        const fetchPriority = prefetchKind ? prefetchKind === _routerreducertypes.PrefetchKind.TEMPORARY ? 'high' : 'low' : 'auto';
        if (process.env.NODE_ENV === 'production') {
            if (process.env.__NEXT_CONFIG_OUTPUT === 'export') {
                // In "output: export" mode, we can't rely on headers to distinguish
                // between HTML and RSC requests. Instead, we append an extra prefix
                // to the request.
                url = new URL(url);
                if (url.pathname.endsWith('/')) {
                    url.pathname += 'index.txt';
                } else {
                    url.pathname += '.txt';
                }
            }
        }
        const res = await createFetch(url, headers, fetchPriority, abortController.signal);
        const responseUrl = urlToUrlWithoutFlightMarker(res.url);
        const canonicalUrl = res.redirected ? responseUrl : undefined;
        const contentType = res.headers.get('content-type') || '';
        const interception = !!((_res_headers_get = res.headers.get('vary')) == null ? void 0 : _res_headers_get.includes(_approuterheaders.NEXT_URL));
        const postponed = !!res.headers.get(_approuterheaders.NEXT_DID_POSTPONE_HEADER);
        const staleTimeHeaderSeconds = res.headers.get(_approuterheaders.NEXT_ROUTER_STALE_TIME_HEADER);
        const staleTime = staleTimeHeaderSeconds !== null ? parseInt(staleTimeHeaderSeconds, 10) * 1000 : -1;
        let isFlightResponse = contentType.startsWith(_approuterheaders.RSC_CONTENT_TYPE_HEADER);
        if (process.env.NODE_ENV === 'production') {
            if (process.env.__NEXT_CONFIG_OUTPUT === 'export') {
                if (!isFlightResponse) {
                    isFlightResponse = contentType.startsWith('text/plain');
                }
            }
        }
        // If fetch returns something different than flight response handle it like a mpa navigation
        // If the fetch was not 200, we also handle it like a mpa navigation
        if (!isFlightResponse || !res.ok || !res.body) {
            // in case the original URL came with a hash, preserve it before redirecting to the new URL
            if (url.hash) {
                responseUrl.hash = url.hash;
            }
            return doMpaNavigation(responseUrl.toString());
        }
        // We may navigate to a page that requires a different Webpack runtime.
        // In prod, every page will have the same Webpack runtime.
        // In dev, the Webpack runtime is minimal for each page.
        // We need to ensure the Webpack runtime is updated before executing client-side JS of the new page.
        if (process.env.NODE_ENV !== 'production' && !process.env.TURBOPACK) {
            await require('../react-dev-overlay/app/hot-reloader-client').waitForWebpackRuntimeHotUpdate();
        }
        // Handle the `fetch` readable stream that can be unwrapped by `React.use`.
        const flightStream = postponed ? createUnclosingPrefetchStream(res.body) : res.body;
        const response = await createFromNextReadableStream(flightStream);
        if ((0, _appbuildid.getAppBuildId)() !== response.b) {
            return doMpaNavigation(res.url);
        }
        return {
            flightData: (0, _flightdatahelpers.normalizeFlightData)(response.f),
            canonicalUrl: canonicalUrl,
            couldBeIntercepted: interception,
            prerendered: response.S,
            postponed,
            staleTime
        };
    } catch (err) {
        if (!abortController.signal.aborted) {
            console.error("Failed to fetch RSC payload for " + url + ". Falling back to browser navigation.", err);
        }
        // If fetch fails handle it like a mpa navigation
        // TODO-APP: Add a test for the case where a CORS request fails, e.g. external url redirect coming from the response.
        // See https://github.com/vercel/next.js/issues/43605#issuecomment-1451617521 for a reproduction.
        return {
            flightData: url.toString(),
            canonicalUrl: undefined,
            couldBeIntercepted: false,
            prerendered: false,
            postponed: false,
            staleTime: -1
        };
    }
}
function createFetch(url, headers, fetchPriority, signal) {
    const fetchUrl = new URL(url);
    // TODO: In output: "export" mode, the headers do nothing. Omit them (and the
    // cache busting search param) from the request so they're
    // maximally cacheable.
    (0, _setcachebustingsearchparam.setCacheBustingSearchParam)(fetchUrl, headers);
    if (process.env.__NEXT_TEST_MODE && fetchPriority !== null) {
        headers['Next-Test-Fetch-Priority'] = fetchPriority;
    }
    if (process.env.NEXT_DEPLOYMENT_ID) {
        headers['x-deployment-id'] = process.env.NEXT_DEPLOYMENT_ID;
    }
    return fetch(fetchUrl, {
        // Backwards compat for older browsers. `same-origin` is the default in modern browsers.
        credentials: 'same-origin',
        headers,
        priority: fetchPriority || undefined,
        signal
    });
}
function createFromNextReadableStream(flightStream) {
    return createFromReadableStream(flightStream, {
        callServer: _appcallserver.callServer,
        findSourceMapURL: _appfindsourcemapurl.findSourceMapURL
    });
}
function createUnclosingPrefetchStream(originalFlightStream) {
    // When PPR is enabled, prefetch streams may contain references that never
    // resolve, because that's how we encode dynamic data access. In the decoded
    // object returned by the Flight client, these are reified into hanging
    // promises that suspend during render, which is effectively what we want.
    // The UI resolves when it switches to the dynamic data stream
    // (via useDeferredValue(dynamic, static)).
    //
    // However, the Flight implementation currently errors if the server closes
    // the response before all the references are resolved. As a cheat to work
    // around this, we wrap the original stream in a new stream that never closes,
    // and therefore doesn't error.
    const reader = originalFlightStream.getReader();
    return new ReadableStream({
        async pull (controller) {
            while(true){
                const { done, value } = await reader.read();
                if (!done) {
                    // Pass to the target stream and keep consuming the Flight response
                    // from the server.
                    controller.enqueue(value);
                    continue;
                }
                // The server stream has closed. Exit, but intentionally do not close
                // the target stream.
                return;
            }
        }
    });
}

if ((typeof exports.default === 'function' || (typeof exports.default === 'object' && exports.default !== null)) && typeof exports.default.__esModule === 'undefined') {
  Object.defineProperty(exports.default, '__esModule', { value: true });
  Object.assign(exports.default, exports);
  module.exports = exports.default;
}

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